Komatsu PC360LC-11 Shop Manual page 15

00 INDEX AND FOREWORD
E-60 MACHINE PUSH-UP FUNCTION DOES NOT OPERATE..................................................40-1059
TROUBLESHOOTING FOR HYDRAULIC AND MECHANICAL SYSTEMS (H MODE) .....................40-1060
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (H MODE)...............................40-1060
SYSTEM CHART OF HYDRAULIC AND MECHANICAL SYSTEMS ..........................................40-1061
FAILURE MODE AND CAUSE TABLE........................................................................................40-1063
H-1 ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT WORK......................................40-1072
H-2 ALL WORK EQUIPMENT, SWING AND TRAVEL LACK SPEED AND POWER ..................40-1073
H-3 FINE CONTROL PERFORMANCE OR RESPONSE IS POOR............................................40-1076
H-4 UNUSUAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP ..................................40-1077
H-5 ENGINE SPEED DROPS LARGELY OR ENGINE STOPS ..................................................40-1078
H-6 SPEED OR POWER OF BOOM IS LOW .............................................................................40-1080
H-7 ARM SPEED OR POWER IS LOW ......................................................................................40-1086
H-8 BUCKET SPEED OR POWER IS LOW................................................................................40-1091
H-9 WORK EQUIPMENT DOES NOT MOVE IN SINGLE OPERATION .....................................40-1094
H-10 HYDRAULIC DRIFT OF BOOM IS LARGE ........................................................................40-1095
H-11 HYDRAULIC DRIFT OF ARM IS LARGE ...........................................................................40-1097
H-12 HYDRAULIC DRIFT OF BUCKET IS LARGE.....................................................................40-1099
H-13 WHEN SINGLE WORK EQUIPMENT IS RELIEVED HYDRAULICALLY, OTHER WORK EQUIP-
MENT MOVES ........................................................................................................................40-1100
H-14 TIME LAG OF WORK EQUIPMENT IS LARGE .................................................................40-1101
H-15 ONE-TOUCH POWER MAXIMIZING FUNCTION DOES NOT OPERATE .........................40-1102
H-16 MACHINE PUSH-UP FUNCTION DOES NOT OPERATE..................................................40-1103
H-17 ATTACHMENT CIRCUIT CANNOT BE CHANGED............................................................40-1104
H-18 OIL FLOW IN ATTACHMENT CIRCUIT CANNOT BE CHANGED .....................................40-1105
H-19 IN COMBINED OPERATION OF WORK EQUIPMENT, EQUIPMENT HAVING HEAVIER LOAD
MOVES SLOWER ...................................................................................................................40-1106
H-20 IN COMBINED OPERATION OF SWING AND TRAVEL, TRAVEL SPEED DROPS LARGELY ......
................................................................................................................................................40-1107
H-21 IN COMBINED OPERATION OF SWING AND BOOM RAISE, BOOM RISING SPEED IS LOW ....
................................................................................................................................................40-1108
H-22 MACHINE DOES NOT TRAVEL STRAIGHT ......................................................................40-1109
H-23 MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW............................. 40-1111
H-24 TRAVEL SPEED IS LOW ................................................................................................... 40-1114
H-25 ONE OF TRACKS DOES NOT RUN .................................................................................. 40-1116
H-26 TRAVEL SPEED DOES NOT CHANGE, OR TRAVEL SPEED IS TOO SLOW OR FAST .. 40-1118
H-27 UPPER STRUCTURE DOES NOT SWING BOTH TO THE RIGHT AND LEFT ................. 40-1119
H-28 SWINGS ONLY IN ONE DIRECTION.................................................................................40-1120
H-29 SWING ACCELERATION OR SWING SPEED IS LOW IN BOTH DIRECTIONS (RIGHT AND
LEFT) ......................................................................................................................................40-1121
H-30 SWING ACCELERATION PERFORMANCE IS POOR OR SWING SPEED IS SLOW IN ONLY
ONE DIRECTION ....................................................................................................................40-1122
H-31 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (BOTH
RIGHT AND LEFT)..................................................................................................................40-1123
H-32 UPPER STRUCTURE OVERRUNS EXCESSIVELY WHEN IT STOPS SWINGING (ONLY ONE
DIRECTION EITHER RIGHT OR LEFT)..................................................................................40-1124
H-33 SHOCK IS LARGE WHEN UPPER STRUCTURE STOPS SWINGING .............................40-1125
H-34 LARGE UNUSUAL NOISE IS HEARD WHEN UPPER STRUCTURE STOPS SWINGING 40-1126
H-35 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS APPLIED)40-1127
H-36 SWING DRIFT ON A SLOPE IS LARGE (WHILE SWING PARKING BRAKE IS RELEASED) ........
................................................................................................................................................40-1128
TROUBLESHOOTING OF ENGINE (S-MODE) .................................................................................40-1129
INFORMATION MENTIONED IN TROUBLESHOOTING TABLE (S MODE)...............................40-1129
S-1 ENGINE DOES NOT CRANK WHEN STARTING SWITCH IS TURNED TO START POSITION.......
................................................................................................................................................40-1130
S-2 ENGINE CRANKS BUT NO EXHAUST GAS COMES OUT .................................................40-1131
S-3 FUEL IS BEING INJECTED BUT ENGINE DOES NOT START (MISFIRING: ENGINE CRANKS
BUT DOES NOT START) ........................................................................................................40-1132
S-4 ENGINE STARTABILITY IS POOR.......................................................................................40-1134
PC360LC-11,PC390LC-11
INDEX
00-13